• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

GS1000 Engine Swap - What to replace?

  • Thread starter Thread starter SP-GS1000GL
  • Start date Start date
S

SP-GS1000GL

Guest
Hi, first time poster and new GS owner here,

I recently bought a 1981 GS1000GL which looked great but wasn't running. I got it running by cleaning the carbs but when I changed the oil I found two pieces of metal which were identified as pieces of bearing cage. Here's a link to a youtube video which has bad sound but show the pieces: http://www.youtube.com/watch?v=rTL2C6vdHlM

I spoke with the local authorities here and they all agreed that without taking the engine completely apart it would be very difficult to identify which bearings had been affected - crankshaft, something in the drive shaft system, etc. They also suggested that this would be an expensive undertaking

I ended up buying an identical parts bike with 23K kms (14K miles) that has been sitting for about 5 years indoors. The engine is not seized and when I drained the oil there were no pieces of metal in it.

That's the back story.

Now I have the parts bike completely disassembled and I need to figure out what to do to the donor engine before I put it into my riding bike.

Right now I am thinking of cleaning it up, adjusting the valves, doing a compression test and putting it into my riding bike (assuming the compression looks good). From what I hear/read, these engines are generally pretty bulletproof...

What other parts should I inspect or replace before putting the engine back in the bike?

My goal is to have a reliable, riding bike that is not likely to suffer a catastrophic mecahnical failure.

Sorry for the length, I appreciate any suggestions
Thanks in advance

Steve P
 
Do the valve clearances first. Once they're all good, check your compression. If the compression comes back weird, you could do a leakdown test as well to find out where all your compression is going, but with only 23K on the clock, it can't be that bad. Mine has 43k on the clock and still looks new inside and has great compression and checks out amazing on leakdown test as well.

One thing to keep in mind is that just because you don't have great compression, it doesn't mean your engine is screwed or even has anything wrong with it at all. Over a number of years in storage the rings can get stuck in the grooves and won't let go and seal right until the engine has been run for a bit.

That bearing cage is from a ball bearing. Could be either end of your tranny shafts, or the end bearings from the crank. I can't remember right now if the crank end bearings were roller or ball. Either way, not good to run it without that cage intact as the balls won't be evenly spaced, and you don't want those bits of cage floating around in there anyway.

ANYWAY, they're easy to change yourself if you're up to the task. Just take the bottom end apart and find which one it is that's come to pieces and replace it. It's a good idea to check everything else out while you're in there too.

Rudy
 
other than the valve clerances and the compression check, there really isnt anything else that should need atention at such low kms

any possible oil leaks, cam chain rattle, etc, you can only learn about once you have the engine running

good luck
 
I'd just put the engine in and get it running before worrying about testing. Testing compression on a cold engine that has sat for a long time will likely come up low anyway. The engine needs to be run some before you know what's going on with the sealing. Valve adjustment would be a good idea of course.
 
You must log in or register to reply here.
Back
Top